- local IDEDEV="$(head -n $((5 * $((${IDEBUS##ide} + 1)))) $OF1275IDE | tail -n 5)"
- [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: IDEDEV=$IDEDEV"
- if [ "$(echo "$IDEDEV" | head -n 1)" != "$IDEBUS" ] ; then
- echo "$PRG: /dev/$DEVNODE: is not supported"
- return 1
- fi
- local DEVSPEC="$(v=`echo "$IDEDEV" | grep devspec` ; echo ${v##*:})"
- [ "$DEBUG" = 1 ] && echo 1>&2 "$PRG: DEBUG: DEVSPEC=$DEVSPEC"
+
+ case "$(cat /proc/device-tree${DEVSPEC}/device_type 2> /dev/null)" in
+ ide|ata)
+ local MASTER="/disk@0"
+ local SLAVE="/disk@1"
+ ;;
+ pci-ide|pci-ata)
+ local MASTER="/@$(cat /proc/ide/${IDEBUS}/channel)/disk@0"
+ local SLAVE="/@$(cat /proc/ide/${IDEBUS}/channel)/disk@1"
+ ;;
+ scsi) ## some lame controllers pretend they are scsi, hopefully all kludges are created equal.
+ local MASTER="/$(($(cat /proc/ide/${IDEBUS}/channel) * 2 + 0)),0"
+ local SLAVE="/$(($(cat /proc/ide/${IDEBUS}/channel) * 2 + 1)),0"
+ ;;
+ *)
+ echo 2>&1 "$PRG: Unsupported IDE device type: \"$(cat /proc/device-tree${DEVSPEC}/device_type 2> /dev/null)\""
+ return 1
+ ;;
+ esac
+